Transmitted-Reference (TR) signaling, in conjunction
with an autocorrelation receiver (AcR), offers a lowcomplexity
alternative to Rake reception in ultrawide bandwidth
systems. This paper provides a unified performance analysis
of various TR schemes by developing an analytical framework
based on the sampling expansion approach. Specifically, we
derive the uncoded bit error probability (BEP) of different
TR signaling schemes, including TR and differential TR (DTR)
signaling valid for a broad class of fading channels. We consider
both AcRs and modified AcRs with noise averaging. We further
develop a quasi-analytical method as well as an approximate
analytical method to extend the BEP analysis to include the
effect of narrowband interference (NBI). We show that the
approximate analytical method is particularly useful in obtaining
BEP expressions that provide insight into the effect of NBI.
We quantify the effects of NBI and channel power dispersion
profile on the optimum integration interval of an AcR. Finally,
we compare TR and DTR signaling in terms of their sensitivity
to NBI.